I'm not a expert but you need inside defense to 13 and sb 11 on Front court players. From what I have read , if the inside defenses is lower and sb higher, you will get beaten all night. Meaning proper defense to block I assume.
Inside defense triggers his shot blocking ability. Also high pay don't mean better player. Again from what I have read, high pay on one player creates a double team. This is why its important to have passing on front court players( pf/c).
You need mobility(ID) as well as ability(SB). They are separate things, I don't know if Sb alone as skill does anything great.